32oz Concentrated Guillards F/2 Formula

This is a commonly used enrichment solution used in the culture of marine phytoplankton.High in essential vitaminsStimulates high concentration phytoplankton culturesContains no silicatesDirections: Simply add 1 ml to 1 L (2 ml to a 2 L pop bottle) of fresh saltwater at ~1.019 s.g., add your starter culture and light ~16 hours per day. A 32 oz bottle is enough for approximately 960 liters at f/2 concentration! Keep in a cool, dark area and shake prior to use.

• UNBEATABLE VALUE & SUPPLY: Stop running out! Our 32oz super-concentrated F/2 formula provides the most economical way to produce a continuous, abundant supply of live, nutrient-rich phytoplankton for your entire reef ecosystem. Perfect for large tanks, multiple systems, or small aquaculture operations.
• MASSIVE YIELD (OVER 240 GALLONS): This generous 32oz (946mL) bottle is enough to make an incredible over 940 liters (248+ gallons) of full-strength culture medium! Significantly reduce costs and ensure a consistent food source for your copepods, rotifers, filter feeders, and corals.
• ​THE PROFESSIONAL STANDARD (GUIL-LARD'S F/2): Rely on the best. Our solution is based on the scientifically proven Guillard's F/2 formula, trusted worldwide for its complete balance of essential macronutrients, trace minerals, and vitamins (B1, B12, Biotin) necessary for explosive and healthy algae growth.
• SILICATE-FREE & REEF SAFE: Crafted with pure, lab-grade ingredients. Our F/2 formula is 100% silicate-free, ensuring you grow beneficial microalgae without contributing to diatom (brown algae) outbreaks in your main display tank. Safe for all reef inhabitants when used as directed.
• EASY TO USE FOR HIGH-VOLUME CULTURES: Despite its size, dosing remains simple. Follow our clear instructions: just 1mL per 1 Liter of new saltwater, add your starter culture, and provide light. Shake well before each use for optimal results in your large-scale culturing efforts.